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Verizon [17]
3 years ago
10

100 POINTS!! Express in radical form.

Mathematics
2 answers:
djverab [1.8K]3 years ago
8 0

Answer:

\large\boxed{27\sqrt[4]{x^3}}

Step-by-step explanation:

\sqrt[n]{a^m}=a^\frac{m}{n}\\\\(ab)^n=a^nb^n\\\\\sqrt[n]{a^n}=a\\\\\sqrt[n]{ab}=\sqrt[n]{a}\cdot\sqrt[n]{b}\\--------------------\\\\(81x)^\frac{3}{4}=\sqrt[4]{(81x)^3}=\sqrt[4]{81^3x^3}=\sqrt[4]{81^3}\cdot\sqrt[4]{x^3}=\sqrt[4]{(3^4)^3}\cdot\sqrt[4]{x^3}\\\\=\sqrt[4]{(3^3)^4}\cdot\sqrt[4]{x^3}=3^3\sqrt[4]{x^3}=27\sqrt[4]{x^3}

Vilka [71]3 years ago
3 0

Answer:

27   4th root (x^3)

Step-by-step explanation:

(81x) ^ 3/4

We know (ab) ^c = a^c b^c

81 ^ (3/4)  * x^3/4

We can rewrite 81 as 3^4

(3^4)^(3/4)  * x^3/4

We know that a^b^c = a^ (b*c)

3^(4*3/4)  * x^3/4

3^(3) * x^3/4

27  * x^3/4

27   4th root (x^3)

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What is the measure of x?
Sveta_85 [38]

Answer:

Hello!

After reviewing the problem you have provided I have come up with the correct solution:

x= 9

Step-by-step explanation:

To come up with this solution you have to first realize that the smaller triangle is a proportionally scaled down version of the entire larger triangle! (I will show what I mean in a linked picture)

So after we have realized that the smaller triangle is a scaled down version of the larger one, we can then create a formula or ratio to calculate the value of the missing side of the larger triangle (being x+6=??).

To create the formula/ratio I divided 10inches by 4inches. Thus the larger triangle is 2.5 times larger than the smaller one.

I then use this ratio to figure out the missing length of the larger triangle by doing:

6inches x 2.5 = 15inches.

I then inputed the 15inches into the formula of the missing side:

x+6=15

Subtracted 6 from both sides to simplify, and came up with the solution!

x=9

Let me know if this helps!

4 0
2 years ago
Joe earns $14 an hour and Blaine earns $18 per hour. Joe receives a raise of $1.75 every six months, and Blaine receives a raise
Katarina [22]

After 4 interval of six months, Joe to earn same hourly rate as Blaine

<em><u>Solution:</u></em>

Given that,

Amount earned by Joe = $ 14 per hour

Amount earned by Blaine = $ 18 per hour

Lets assume the number of six month intervals be "x"

<em><u>Joe receives a raise of $1.75 every six months</u></em>

Therefore,

Joe earning: 14 + 1.75(number of six month intervals)

Equation for Joe earning: 14 + 1.75x ------- eqn 1

<em><u>Blaine receives a raise of $0.75 every six months</u></em>

Therefore,

Blaine earning: 18 + 0.75(number of six month intervals)

Equation for Blaine earning: 18 + 0.75x ------------ eqn 2

The number of six-month intervals it will take Joe to earn the same hourly rate as Blaine,

Eqn 1 must be equal to eqn 2

14+1.75x = 18+0.75x\\\\1.75x-0.75x = 18-14\\\\1x = 4\\\\x = 4

Thus after 4 interval of six months, Joe to earn same hourly rate as Blaine.

8 0
3 years ago
Lucia wants to buy some posters over the Internet. Each poster costs $6.67 and has a shipping cost of $9.99 per order. If Lucia
atroni [7]
<span>9.99p + 6.67p ≤ 30
9.99p + 6.67p less than or equall to 30</span>
7 0
3 years ago
Read 2 more answers
HELP ME WITH THIS PLEASEEEEE
strojnjashka [21]
Use the metric relations,
AC*CD=BC^2
=>
5*CD=9^2
solve for CD
CD=9*9/5=16.2
7 0
3 years ago
Find measure angle 1
STatiana [176]

Answer:

60°

Step-by-step explanation:

Opposite interior angles are equal.

5 0
3 years ago
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